[ntp:questions] Keeping NTP Honest
evandro at mailinator.com
Fri Jul 10 19:19:38 UTC 2009
As I mentioned before, in some cases, NTP relies too much on low-
stratum servers, even when they're blatantly wrong. For instance, the
last leap second event, when many pool servers were poorly configured.
Mulling over that, I wondered how I could tip NTP to scale down the
poll period in such cases. So I tried this trick and it seems to work
fairly well when only one server is kaput:
server pool.ntp.org iburst maxpoll 6
By having one server that remains polled every 64s, NTP could realize
more quickly that there was something rotten in Denmark. However, if
that one server is neither selected nor a candidate, this trick
doesn't work. I'd hesitate to make it the preferred server though.
More information about the questions